cregit-Linux how code gets into the kernel

Release 4.15 net/bridge/br_private.h

Directory: net/bridge
/*
 *      Linux ethernet bridge
 *
 *      Authors:
 *      Lennert Buytenhek               <buytenh@gnu.org>
 *
 *      This program is free software; you can redistribute it and/or
 *      modify it under the terms of the GNU General Public License
 *      as published by the Free Software Foundation; either version
 *      2 of the License, or (at your option) any later version.
 */

#ifndef _BR_PRIVATE_H

#define _BR_PRIVATE_H

#include <linux/netdevice.h>
#include <linux/if_bridge.h>
#include <linux/netpoll.h>
#include <linux/u64_stats_sync.h>
#include <net/route.h>
#include <net/ip6_fib.h>
#include <linux/if_vlan.h>
#include <linux/rhashtable.h>
#include <linux/refcount.h>


#define BR_HASH_BITS 8

#define BR_HASH_SIZE (1 << BR_HASH_BITS)


#define BR_HOLD_TIME (1*HZ)


#define BR_PORT_BITS	10

#define BR_MAX_PORTS	(1<<BR_PORT_BITS)


#define BR_VERSION	"2.3"

/* Control of forwarding link local multicast */

#define BR_GROUPFWD_DEFAULT	0
/* Don't allow forwarding of control protocols like STP, MAC PAUSE and LACP */
enum {
	
BR_GROUPFWD_STP		= BIT(0),
	
BR_GROUPFWD_MACPAUSE	= BIT(1),
	
BR_GROUPFWD_LACP	= BIT(2),
};


#define BR_GROUPFWD_RESTRICTED (BR_GROUPFWD_STP | BR_GROUPFWD_MACPAUSE | \
                                BR_GROUPFWD_LACP)
/* The Nearest Customer Bridge Group Address, 01-80-C2-00-00-[00,0B,0C,0D,0F] */

#define BR_GROUPFWD_8021AD	0xB801u

/* Path to usermode spanning tree program */

#define BR_STP_PROG	"/sbin/bridge-stp"


typedef struct bridge_id bridge_id;

typedef struct mac_addr mac_addr;

typedef __u16 port_id;


struct bridge_id
{
	
unsigned char	prio[2];
	
unsigned char	addr[ETH_ALEN];
};


struct mac_addr
{
	
unsigned char	addr[ETH_ALEN];
};

#ifdef CONFIG_BRIDGE_IGMP_SNOOPING
/* our own querier */

struct bridge_mcast_own_query {
	
struct timer_list	timer;
	
u32			startup_sent;
};

/* other querier */

struct bridge_mcast_other_query {
	
struct timer_list		timer;
	
unsigned long			delay_time;
};

/* selected querier */

struct bridge_mcast_querier {
	
struct br_ip addr;
	
struct net_bridge_port __rcu	*port;
};

/* IGMP/MLD statistics */

struct bridge_mcast_stats {
	
struct br_mcast_stats mstats;
	
struct u64_stats_sync syncp;
};
#endif


struct br_vlan_stats {
	
u64 rx_bytes;
	
u64 rx_packets;
	
u64 tx_bytes;
	
u64 tx_packets;
	
struct u64_stats_sync syncp;
};


struct br_tunnel_info {
	
__be64			tunnel_id;
	
struct metadata_dst	*tunnel_dst;
};

/**
 * struct net_bridge_vlan - per-vlan entry
 *
 * @vnode: rhashtable member
 * @vid: VLAN id
 * @flags: bridge vlan flags
 * @stats: per-cpu VLAN statistics
 * @br: if MASTER flag set, this points to a bridge struct
 * @port: if MASTER flag unset, this points to a port struct
 * @refcnt: if MASTER flag set, this is bumped for each port referencing it
 * @brvlan: if MASTER flag unset, this points to the global per-VLAN context
 *          for this VLAN entry
 * @vlist: sorted list of VLAN entries
 * @rcu: used for entry destruction
 *
 * This structure is shared between the global per-VLAN entries contained in
 * the bridge rhashtable and the local per-port per-VLAN entries contained in
 * the port's rhashtable. The union entries should be interpreted depending on
 * the entry flags that are set.
 */

struct net_bridge_vlan {
	
struct rhash_head		vnode;
	
struct rhash_head		tnode;
	
u16				vid;
	
u16				flags;
	
struct br_vlan_stats __percpu	*stats;
	union {
		
struct net_bridge	*br;
		
struct net_bridge_port	*port;
	};
	union {
		
refcount_t		refcnt;
		
struct net_bridge_vlan	*brvlan;
	};

	
struct br_tunnel_info		tinfo;

	
struct list_head		vlist;

	
struct rcu_head			rcu;
};

/**
 * struct net_bridge_vlan_group
 *
 * @vlan_hash: VLAN entry rhashtable
 * @vlan_list: sorted VLAN entry list
 * @num_vlans: number of total VLAN entries
 * @pvid: PVID VLAN id
 *
 * IMPORTANT: Be careful when checking if there're VLAN entries using list
 *            primitives because the bridge can have entries in its list which
 *            are just for global context but not for filtering, i.e. they have
 *            the master flag set but not the brentry flag. If you have to check
 *            if there're "real" entries in the bridge please test @num_vlans
 */

struct net_bridge_vlan_group {
	
struct rhashtable		vlan_hash;
	
struct rhashtable		tunnel_hash;
	
struct list_head		vlan_list;
	
u16				num_vlans;
	
u16				pvid;
};


struct net_bridge_fdb_entry {
	
struct hlist_node		hlist;
	
struct net_bridge_port		*dst;

	
mac_addr			addr;
	
__u16				vlan_id;
	
unsigned char			is_local:1,
					
is_static:1,
					
added_by_user:1,
					
added_by_external_learn:1,
					
offloaded:1;

	/* write-heavy members should not affect lookups */
	
unsigned long			updated ____cacheline_aligned_in_smp;
	
unsigned long			used;

	
struct rcu_head			rcu;
};


#define MDB_PG_FLAGS_PERMANENT	BIT(0)

#define MDB_PG_FLAGS_OFFLOAD	BIT(1)


struct net_bridge_port_group {
	
struct net_bridge_port		*port;
	
struct net_bridge_port_group __rcu *next;
	
struct hlist_node		mglist;
	
struct rcu_head			rcu;
	
struct timer_list		timer;
	
struct br_ip			addr;
	
unsigned char			flags;
	
unsigned char			eth_addr[ETH_ALEN];
};


struct net_bridge_mdb_entry
{
	
struct hlist_node		hlist[2];
	
struct net_bridge		*br;
	
struct net_bridge_port_group __rcu *ports;
	
struct rcu_head			rcu;
	
struct timer_list		timer;
	
struct br_ip			addr;
	
bool				host_joined;
};


struct net_bridge_mdb_htable
{
	
struct hlist_head		*mhash;
	
struct rcu_head			rcu;
	
struct net_bridge_mdb_htable	*old;
	
u32				size;
	
u32				max;
	
u32				secret;
	
u32				ver;
};


struct net_bridge_port {
	
struct net_bridge		*br;
	
struct net_device		*dev;
	
struct list_head		list;

	
unsigned long			flags;
#ifdef CONFIG_BRIDGE_VLAN_FILTERING
	
struct net_bridge_vlan_group	__rcu *vlgrp;
#endif

	/* STP */
	
u8				priority;
	
u8				state;
	
u16				port_no;
	
unsigned char			topology_change_ack;
	
unsigned char			config_pending;
	
port_id				port_id;
	
port_id				designated_port;
	
bridge_id			designated_root;
	
bridge_id			designated_bridge;
	
u32				path_cost;
	
u32				designated_cost;
	
unsigned long			designated_age;

	
struct timer_list		forward_delay_timer;
	
struct timer_list		hold_timer;
	
struct timer_list		message_age_timer;
	
struct kobject			kobj;
	
struct rcu_head			rcu;

#ifdef CONFIG_BRIDGE_IGMP_SNOOPING
	
struct bridge_mcast_own_query	ip4_own_query;
#if IS_ENABLED(CONFIG_IPV6)
	
struct bridge_mcast_own_query	ip6_own_query;
#endif /* IS_ENABLED(CONFIG_IPV6) */
	
unsigned char			multicast_router;
	
struct bridge_mcast_stats	__percpu *mcast_stats;
	
struct timer_list		multicast_router_timer;
	
struct hlist_head		mglist;
	
struct hlist_node		rlist;
#endif

#ifdef CONFIG_SYSFS
	
char				sysfs_name[IFNAMSIZ];
#endif

#ifdef CONFIG_NET_POLL_CONTROLLER
	
struct netpoll			*np;
#endif
#ifdef CONFIG_NET_SWITCHDEV
	
int				offload_fwd_mark;
#endif
	
u16				group_fwd_mask;
};


#define br_auto_port(p) ((p)->flags & BR_AUTO_MASK)

#define br_promisc_port(p) ((p)->flags & BR_PROMISC)


#define br_port_exists(dev) (dev->priv_flags & IFF_BRIDGE_PORT)


static inline struct net_bridge_port *br_port_get_rcu(const struct net_device *dev) { return rcu_dereference(dev->rx_handler_data); }

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static inline struct net_bridge_port *br_port_get_rtnl(const struct net_device *dev) { return br_port_exists(dev) ? rtnl_dereference(dev->rx_handler_data) : NULL; }

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static inline struct net_bridge_port *br_port_get_rtnl_rcu(const struct net_device *dev) { return br_port_exists(dev) ? rcu_dereference_rtnl(dev->rx_handler_data) : NULL; }

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struct net_bridge { spinlock_t lock; spinlock_t hash_lock; struct list_head port_list; struct net_device *dev; struct pcpu_sw_netstats __percpu *stats; /* These fields are accessed on each packet */ #ifdef CONFIG_BRIDGE_VLAN_FILTERING u8 vlan_enabled; u8 vlan_stats_enabled; __be16 vlan_proto; u16 default_pvid; struct net_bridge_vlan_group __rcu *vlgrp; #endif struct hlist_head hash[BR_HASH_SIZE]; #if IS_ENABLED(CONFIG_BRIDGE_NETFILTER) union { struct rtable fake_rtable; struct rt6_info fake_rt6_info; }; bool nf_call_iptables; bool nf_call_ip6tables; bool nf_call_arptables; #endif u16 group_fwd_mask; u16 group_fwd_mask_required; /* STP */ bridge_id designated_root; bridge_id bridge_id; u32 root_path_cost; unsigned char topology_change; unsigned char topology_change_detected; u16 root_port; unsigned long max_age; unsigned long hello_time; unsigned long forward_delay; unsigned long ageing_time; unsigned long bridge_max_age; unsigned long bridge_hello_time; unsigned long bridge_forward_delay; unsigned long bridge_ageing_time; u8 group_addr[ETH_ALEN]; bool group_addr_set; enum { BR_NO_STP, /* no spanning tree */ BR_KERNEL_STP, /* old STP in kernel */ BR_USER_STP, /* new RSTP in userspace */ } stp_enabled; #ifdef CONFIG_BRIDGE_IGMP_SNOOPING unsigned char multicast_router; u8 multicast_disabled:1; u8 multicast_querier:1; u8 multicast_query_use_ifaddr:1; u8 has_ipv6_addr:1; u8 multicast_stats_enabled:1; u32 hash_elasticity; u32 hash_max; u32 multicast_last_member_count; u32 multicast_startup_query_count; u8 multicast_igmp_version; unsigned long multicast_last_member_interval; unsigned long multicast_membership_interval; unsigned long multicast_querier_interval; unsigned long multicast_query_interval; unsigned long multicast_query_response_interval; unsigned long multicast_startup_query_interval; spinlock_t multicast_lock; struct net_bridge_mdb_htable __rcu *mdb; struct hlist_head router_list; struct timer_list multicast_router_timer; struct bridge_mcast_other_query ip4_other_query; struct bridge_mcast_own_query ip4_own_query; struct bridge_mcast_querier ip4_querier; struct bridge_mcast_stats __percpu *mcast_stats; #if IS_ENABLED(CONFIG_IPV6) struct bridge_mcast_other_query ip6_other_query; struct bridge_mcast_own_query ip6_own_query; struct bridge_mcast_querier ip6_querier; u8 multicast_mld_version; #endif /* IS_ENABLED(CONFIG_IPV6) */ #endif struct timer_list hello_timer; struct timer_list tcn_timer; struct timer_list topology_change_timer; struct delayed_work gc_work; struct kobject *ifobj; u32 auto_cnt; #ifdef CONFIG_NET_SWITCHDEV int offload_fwd_mark; #endif bool neigh_suppress_enabled; }; struct br_input_skb_cb { struct net_device *brdev; #ifdef CONFIG_BRIDGE_IGMP_SNOOPING int igmp; int mrouters_only; #endif bool proxyarp_replied; #ifdef CONFIG_BRIDGE_VLAN_FILTERING bool vlan_filtered; #endif #ifdef CONFIG_NET_SWITCHDEV int offload_fwd_mark; #endif }; #define BR_INPUT_SKB_CB(__skb) ((struct br_input_skb_cb *)(__skb)->cb) #ifdef CONFIG_BRIDGE_IGMP_SNOOPING # define BR_INPUT_SKB_CB_MROUTERS_ONLY(__skb) (BR_INPUT_SKB_CB(__skb)->mrouters_only) #else # define BR_INPUT_SKB_CB_MROUTERS_ONLY(__skb) (0) #endif #define br_printk(level, br, format, args...) \ printk(level "%s: " format, (br)->dev->name, ##args) #define br_err(__br, format, args...) \ br_printk(KERN_ERR, __br, format, ##args) #define br_warn(__br, format, args...) \ br_printk(KERN_WARNING, __br, format, ##args) #define br_notice(__br, format, args...) \ br_printk(KERN_NOTICE, __br, format, ##args) #define br_info(__br, format, args...) \ br_printk(KERN_INFO, __br, format, ##args) #define br_debug(br, format, args...) \ pr_debug("%s: " format, (br)->dev->name, ##args) /* called under bridge lock */
static inline int br_is_root_bridge(const struct net_bridge *br) { return !memcmp(&br->bridge_id, &br->designated_root, 8); }

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/* check if a VLAN entry is global */
static inline bool br_vlan_is_master(const struct net_bridge_vlan *v) { return v->flags & BRIDGE_VLAN_INFO_MASTER; }

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/* check if a VLAN entry is used by the bridge */
static inline bool br_vlan_is_brentry(const struct net_bridge_vlan *v) { return v->flags & BRIDGE_VLAN_INFO_BRENTRY; }

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/* check if we should use the vlan entry, returns false if it's only context */
static inline bool br_vlan_should_use(const struct net_bridge_vlan *v) { if (br_vlan_is_master(v)) { if (br_vlan_is_brentry(v)) return true; else return false; } return true; }

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/* br_device.c */ void br_dev_setup(struct net_device *dev); void br_dev_delete(struct net_device *dev, struct list_head *list); netdev_tx_t br_dev_xmit(struct sk_buff *skb, struct net_device *dev); #ifdef CONFIG_NET_POLL_CONTROLLER
static inline void br_netpoll_send_skb(const struct net_bridge_port *p, struct sk_buff *skb) { struct netpoll *np = p->np; if (np) netpoll_send_skb(np, skb); }

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int br_netpoll_enable(struct net_bridge_port *p); void br_netpoll_disable(struct net_bridge_port *p); #else
static inline void br_netpoll_send_skb(const struct net_bridge_port *p, struct sk_buff *skb) { }

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static inline int br_netpoll_enable(struct net_bridge_port *p) { return 0; }

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static inline void br_netpoll_disable(struct net_bridge_port *p) { }

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#endif /* br_fdb.c */ int br_fdb_init(void); void br_fdb_fini(void); void br_fdb_flush(struct net_bridge *br); void br_fdb_find_delete_local(struct net_bridge *br, const struct net_bridge_port *p, const unsigned char *addr, u16 vid); void br_fdb_changeaddr(struct net_bridge_port *p, const unsigned char *newaddr); void br_fdb_change_mac_address(struct net_bridge *br, const u8 *newaddr); void br_fdb_cleanup(struct work_struct *work); void br_fdb_delete_by_port(struct net_bridge *br, const struct net_bridge_port *p, u16 vid, int do_all); struct net_bridge_fdb_entry *br_fdb_find_rcu(struct net_bridge *br, const unsigned char *addr, __u16 vid); int br_fdb_test_addr(struct net_device *dev, unsigned char *addr); int br_fdb_fillbuf(struct net_bridge *br, void *buf, unsigned long count, unsigned long off); int br_fdb_insert(struct net_bridge *br, struct net_bridge_port *source, const unsigned char *addr, u16 vid); void br_fdb_update(struct net_bridge *br, struct net_bridge_port *source, const unsigned char *addr, u16 vid, bool added_by_user); int br_fdb_delete(struct ndmsg *ndm, struct nlattr *tb[], struct net_device *dev, const unsigned char *addr, u16 vid); int br_fdb_add(struct ndmsg *nlh, struct nlattr *tb[], struct net_device *dev, const unsigned char *addr, u16 vid, u16 nlh_flags); int br_fdb_dump(struct sk_buff *skb, struct netlink_callback *cb, struct net_device *dev, struct net_device *fdev, int *idx); int br_fdb_sync_static(struct net_bridge *br, struct net_bridge_port *p); void br_fdb_unsync_static(struct net_bridge *br, struct net_bridge_port *p); int br_fdb_external_learn_add(struct net_bridge *br, struct net_bridge_port *p, const unsigned char *addr, u16 vid); int br_fdb_external_learn_del(struct net_bridge *br, struct net_bridge_port *p, const unsigned char *addr, u16 vid); void br_fdb_offloaded_set(struct net_bridge *br, struct net_bridge_port *p, const unsigned char *addr, u16 vid); /* br_forward.c */ enum br_pkt_type { BR_PKT_UNICAST, BR_PKT_MULTICAST, BR_PKT_BROADCAST }; int br_dev_queue_push_xmit(struct net *net, struct sock *sk, struct sk_buff *skb); void br_forward(const struct net_bridge_port *to, struct sk_buff *skb, bool local_rcv, bool local_orig); int br_forward_finish(struct net *net, struct sock *sk, struct sk_buff *skb); void br_flood(struct net_bridge *br, struct sk_buff *skb, enum br_pkt_type pkt_type, bool local_rcv, bool local_orig); /* br_if.c */ void br_port_carrier_check(struct net_bridge_port *p); int br_add_bridge(struct net *net, const char *name); int br_del_bridge(struct net *net, const char *name); int br_add_if(struct net_bridge *br, struct net_device *dev, struct netlink_ext_ack *extack); int br_del_if(struct net_bridge *br, struct net_device *dev); int br_min_mtu(const struct net_bridge *br); netdev_features_t br_features_recompute(struct net_bridge *br, netdev_features_t features); void br_port_flags_change(struct net_bridge_port *port, unsigned long mask); void br_manage_promisc(struct net_bridge *br); /* br_input.c */ int br_handle_frame_finish(struct net *net, struct sock *sk, struct sk_buff *skb); rx_handler_result_t br_handle_frame(struct sk_buff **pskb);
static inline bool br_rx_handler_check_rcu(const struct net_device *dev) { return rcu_dereference(dev->rx_handler) == br_handle_frame; }

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static inline struct net_bridge_port *br_port_get_check_rcu(const struct net_device *dev) { return br_rx_handler_check_rcu(dev) ? br_port_get_rcu(dev) : NULL; }

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/* br_ioctl.c */ int br_dev_ioctl(struct net_device *dev, struct ifreq *rq, int cmd); int br_ioctl_deviceless_stub(struct net *net, unsigned int cmd, void __user *arg); /* br_multicast.c */ #ifdef CONFIG_BRIDGE_IGMP_SNOOPING extern unsigned int br_mdb_rehash_seq; int br_multicast_rcv(struct net_bridge *br, struct net_bridge_port *port, struct sk_buff *skb, u16 vid); struct net_bridge_mdb_entry *br_mdb_get(struct net_bridge *br, struct sk_buff *skb, u16 vid); int br_multicast_add_port(struct net_bridge_port *port); void br_multicast_del_port(struct net_bridge_port *port); void br_multicast_enable_port(struct net_bridge_port *port); void br_multicast_disable_port(struct net_bridge_port *port); void br_multicast_init(struct net_bridge *br); void br_multicast_open(struct net_bridge *br); void br_multicast_stop(struct net_bridge *br); void br_multicast_dev_del(struct net_bridge *br); void br_multicast_flood(struct net_bridge_mdb_entry *mdst, struct sk_buff *skb, bool local_rcv, bool local_orig); int br_multicast_set_router(struct net_bridge *br, unsigned long val); int br_multicast_set_port_router(struct net_bridge_port *p, unsigned long val); int br_multicast_toggle(struct net_bridge *br, unsigned long val); int br_multicast_set_querier(struct net_bridge *br, unsigned long val); int br_multicast_set_hash_max(struct net_bridge *br, unsigned long val); int br_multicast_set_igmp_version(struct net_bridge *br, unsigned long val); #if IS_ENABLED(CONFIG_IPV6) int br_multicast_set_mld_version(struct net_bridge *br, unsigned long val); #endif struct net_bridge_mdb_entry * br_mdb_ip_get(struct net_bridge_mdb_htable *mdb, struct br_ip *dst); struct net_bridge_mdb_entry * br_multicast_new_group(struct net_bridge *br, struct net_bridge_port *port, struct br_ip *group); void br_multicast_free_pg(struct rcu_head *head); struct net_bridge_port_group * br_multicast_new_port_group(struct net_bridge_port *port, struct br_ip *group, struct net_bridge_port_group __rcu *next, unsigned char flags, const unsigned char *src); void br_mdb_init(void); void br_mdb_uninit(void); void br_mdb_notify(struct net_device *dev, struct net_bridge_port *port, struct br_ip *group, int type, u8 flags); void br_rtr_notify(struct net_device *dev, struct net_bridge_port *port, int type); void br_multicast_count(struct net_bridge *br, const struct net_bridge_port *p, const struct sk_buff *skb, u8 type, u8 dir); int br_multicast_init_stats(struct net_bridge *br); void br_multicast_uninit_stats(struct net_bridge *br); void br_multicast_get_stats(const struct net_bridge *br, const struct net_bridge_port *p, struct br_mcast_stats *dest); #define mlock_dereference(X, br) \ rcu_dereference_protected(X, lockdep_is_held(&br->multicast_lock))
static inline bool br_multicast_is_router(struct net_bridge *br) { return br->multicast_router == 2 || (br->multicast_router == 1 && timer_pending(&br->multicast_router_timer)); }

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static inline bool __br_multicast_querier_exists(struct net_bridge *br, struct bridge_mcast_other_query *querier, const bool is_ipv6) { bool own_querier_enabled; if (br->multicast_querier) { if (is_ipv6 && !br->has_ipv6_addr) own_querier_enabled = false; else own_querier_enabled = true; } else { own_querier_enabled = false; } return time_is_before_jiffies(querier->delay_time) && (own_querier_enabled || timer_pending(&querier->timer)); }

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static inline bool br_multicast_querier_exists(struct net_bridge *br, struct ethhdr *eth) { switch (eth->h_proto) { case (htons(ETH_P_IP)): return __br_multicast_querier_exists(br, &br->ip4_other_query, false); #if IS_ENABLED(CONFIG_IPV6) case (htons(ETH_P_IPV6)): return __br_multicast_querier_exists(br, &br->ip6_other_query, true); #endif default: return false; } }

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static inline int br_multicast_igmp_type(const struct sk_buff *skb) { return BR_INPUT_SKB_CB(skb)->igmp; }

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#else
static inline int br_multicast_rcv(struct net_bridge *br, struct net_bridge_port *port, struct sk_buff *skb, u16 vid) { return 0; }

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PersonTokensPropCommitsCommitProp
Herbert Xu2589.29%150.00%
Vlad Yasevich310.71%150.00%
Total28100.00%2100.00%


static inline struct net_bridge_mdb_entry *br_mdb_get(struct net_bridge *br, struct sk_buff *skb, u16 vid) { return NULL; }

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Herbert Xu2288.00%150.00%
Américo Wang312.00%150.00%
Total25100.00%2100.00%


static inline int br_multicast_add_port(struct net_bridge_port *port) { return 0; }

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Herbert Xu960.00%150.00%
Nikolay Aleksandrov640.00%150.00%
Total15100.00%2100.00%


static inline void br_multicast_del_port(struct net_bridge_port *port) { }

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PersonTokensPropCommitsCommitProp
Herbert Xu11100.00%1100.00%
Total11100.00%1100.00%


static inline void br_multicast_enable_port(struct net_bridge_port *port) { }

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PersonTokensPropCommitsCommitProp
Herbert Xu11100.00%1100.00%
Total11100.00%1100.00%


static inline void br_multicast_disable_port(struct net_bridge_port *port) { }

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PersonTokensPropCommitsCommitProp
Herbert Xu11100.00%1100.00%
Total11100.00%1100.00%


static inline void br_multicast_init(struct net_bridge *br) { }

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PersonTokensPropCommitsCommitProp
Herbert Xu11100.00%1100.00%
Total11100.00%1100.00%


static inline void br_multicast_open(struct net_bridge *br) { }

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PersonTokensPropCommitsCommitProp
Herbert Xu11100.00%1100.00%
Total11100.00%1100.00%


static inline void br_multicast_stop(struct net_bridge *br) { }

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PersonTokensPropCommitsCommitProp
Herbert Xu11100.00%1100.00%
Total11100.00%1100.00%


static inline void br_multicast_dev_del(struct net_bridge *br) { }

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Nikolay Aleksandrov11100.00%1100.00%
Total11100.00%1100.00%


static inline void br_multicast_flood(struct net_bridge_mdb_entry *mdst, struct sk_buff *skb, bool local_rcv, bool local_orig) { }

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PersonTokensPropCommitsCommitProp
Herbert Xu1672.73%133.33%
Nikolay Aleksandrov627.27%266.67%
Total22100.00%3100.00%


static inline bool br_multicast_is_router(struct net_bridge *br) { return 0; }

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PersonTokensPropCommitsCommitProp
Herbert Xu1493.33%150.00%
Sridhar Samudrala16.67%150.00%
Total15100.00%2100.00%


static inline bool br_multicast_querier_exists(struct net_bridge *br, struct ethhdr *eth) { return false; }

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Linus Lüssing20100.00%2100.00%
Total20100.00%2100.00%


static inline void br_mdb_init(void) { }

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Rami Rosen8100.00%1100.00%
Total8100.00%1100.00%


static inline void br_mdb_uninit(void) { }

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PersonTokensPropCommitsCommitProp
Rami Rosen8100.00%1100.00%
Total8100.00%1100.00%


static inline void br_multicast_count(struct net_bridge *br, const struct net_bridge_port *p, const struct sk_buff *skb, u8 type, u8 dir) { }

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Nikolay Aleksandrov29100.00%2100.00%
Total29100.00%2100.00%


static inline int br_multicast_init_stats(struct net_bridge *br) { return 0; }

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Nikolay Aleksandrov15100.00%1100.00%
Total15100.00%1100.00%


static inline void br_multicast_uninit_stats(struct net_bridge *br) { }

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PersonTokensPropCommitsCommitProp
Ido Schimmel11100.00%1100.00%
Total11100.00%1100.00%


static inline int br_multicast_igmp_type(const struct sk_buff *skb) { return 0; }

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Nikolay Aleksandrov16100.00%1100.00%
Total16100.00%1100.00%

#endif /* br_vlan.c */ #ifdef CONFIG_BRIDGE_VLAN_FILTERING bool br_allowed_ingress(const struct net_bridge *br, struct net_bridge_vlan_group *vg, struct sk_buff *skb, u16 *vid); bool br_allowed_egress(struct net_bridge_vlan_group *vg, const struct sk_buff *skb); bool br_should_learn(struct net_bridge_port *p, struct sk_buff *skb, u16 *vid); struct sk_buff *br_handle_vlan(struct net_bridge *br, const struct net_bridge_port *port, struct net_bridge_vlan_group *vg, struct sk_buff *skb); int br_vlan_add(struct net_bridge *br, u16 vid, u16 flags, bool *changed); int br_vlan_delete(struct net_bridge *br, u16 vid); void br_vlan_flush(struct net_bridge *br); struct net_bridge_vlan *br_vlan_find(struct net_bridge_vlan_group *vg, u16 vid); void br_recalculate_fwd_mask(struct net_bridge *br); int __br_vlan_filter_toggle(struct net_bridge *br, unsigned long val); int br_vlan_filter_toggle(struct net_bridge *br, unsigned long val); int __br_vlan_set_proto(struct net_bridge *br, __be16 proto); int br_vlan_set_proto(struct net_bridge *br, unsigned long val); int br_vlan_set_stats(struct net_bridge *br, unsigned long val); int br_vlan_init(struct net_bridge *br); int br_vlan_set_default_pvid(struct net_bridge *br, unsigned long val); int __br_vlan_set_default_pvid(struct net_bridge *br, u16 pvid); int nbp_vlan_add(struct net_bridge_port *port, u16 vid, u16 flags, bool *changed); int nbp_vlan_delete(struct net_bridge_port *port, u16 vid); void nbp_vlan_flush(struct net_bridge_port *port); int nbp_vlan_init(struct net_bridge_port *port); int nbp_get_num_vlan_infos(struct net_bridge_port *p, u32 filter_mask); void br_vlan_get_stats(const struct net_bridge_vlan *v, struct br_vlan_stats *stats);
static inline struct net_bridge_vlan_group *br_vlan_group( const struct net_bridge *br) { return rtnl_dereference(br->vlgrp); }

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PersonTokensPropCommitsCommitProp
Vlad Yasevich1773.91%133.33%
Nikolay Aleksandrov626.09%266.67%
Total23100.00%3100.00%


static inline struct net_bridge_vlan_group *nbp_vlan_group( const struct net_bridge_port *p) { return rtnl_dereference(p->vlgrp); }

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PersonTokensPropCommitsCommitProp
Vlad Yasevich1565.22%133.33%
Nikolay Aleksandrov834.78%266.67%
Total23100.00%3100.00%


static inline struct net_bridge_vlan_group *br_vlan_group_rcu( const struct net_bridge *br) { return rcu_dereference(br->vlgrp); }

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PersonTokensPropCommitsCommitProp
Nikolay Aleksandrov23100.00%1100.00%
Total23100.00%1100.00%


static inline struct net_bridge_vlan_group *nbp_vlan_group_rcu( const struct net_bridge_port *p) { return rcu_dereference(p->vlgrp); }

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PersonTokensPropCommitsCommitProp
Nikolay Aleksandrov2191.30%150.00%
Vlad Yasevich28.70%150.00%
Total23100.00%2100.00%

/* Since bridge now depends on 8021Q module, but the time bridge sees the * skb, the vlan tag will always be present if the frame was tagged. */
static inline int br_vlan_get_tag(const struct sk_buff *skb, u16 *vid) { int err = 0; if (skb_vlan_tag_present(skb)) { *vid = skb_vlan_tag_get(skb) & VLAN_VID_MASK; } else { *vid = 0; err = -EINVAL; } return err; }

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PersonTokensPropCommitsCommitProp
Vlad Yasevich5392.98%133.33%
Jiri Pirko23.51%133.33%
Nikolay Aleksandrov23.51%133.33%
Total57100.00%3100.00%


static inline u16 br_get_pvid(const struct net_bridge_vlan_group *vg) { if (!vg) return 0; smp_rmb(); return vg->pvid; }

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PersonTokensPropCommitsCommitProp
Nikolay Aleksandrov1862.07%266.67%
Vlad Yasevich1137.93%133.33%
Total29100.00%3100.00%

#else
static inline bool br_allowed_ingress(const struct net_bridge *br, struct net_bridge_vlan_group *vg, struct sk_buff *skb, u16 *vid) { return true; }

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PersonTokensPropCommitsCommitProp
Vlad Yasevich2686.67%250.00%
Nikolay Aleksandrov413.33%250.00%
Total30100.00%4100.00%


static inline bool br_allowed_egress(struct net_bridge_vlan_group *vg, const struct sk_buff *skb) { return true; }

Contributors

PersonTokensPropCommitsCommitProp
Vlad Yasevich1990.48%150.00%
Nikolay Aleksandrov29.52%150.00%
Total21100.00%2100.00%


static inline bool br_should_learn(struct net_bridge_port *p, struct sk_buff *skb, u16 *vid) { return true; }

Contributors

PersonTokensPropCommitsCommitProp
Toshiaki Makita24100.00%1100.00%
Total24100.00%1100.00%


static inline struct sk_buff *br_handle_vlan(struct net_bridge *br, const struct net_bridge_port *port, struct net_bridge_vlan_group *vg, struct sk_buff *skb) { return skb; }

Contributors

PersonTokensPropCommitsCommitProp
Vlad Yasevich2575.76%133.33%
Roopa Prabhu618.18%133.33%
Nikolay Aleksandrov26.06%133.33%
Total33100.00%3100.00%


static inline int br_vlan_add(struct net_bridge *br, u16 vid, u16 flags, bool *changed) { *changed = false; return -EOPNOTSUPP; }

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PersonTokensPropCommitsCommitProp
Vlad Yasevich2270.97%266.67%
Nikolay Aleksandrov929.03%133.33%
Total31100.00%3100.00%


static inline int br_vlan_delete(struct net_bridge *br, u16 vid) { return -EOPNOTSUPP; }

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PersonTokensPropCommitsCommitProp
Vlad Yasevich19100.00%1100.00%
Total19100.00%1100.00%


static inline void br_vlan_flush(struct net_bridge *br) { }

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PersonTokensPropCommitsCommitProp
Vlad Yasevich11100.00%1100.00%
Total11100.00%1100.00%


static inline void br_recalculate_fwd_mask(struct net_bridge *br) { }

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PersonTokensPropCommitsCommitProp
Toshiaki Makita11100.00%1100.00%
Total11100.00%1100.00%


static inline int br_vlan_init(struct net_bridge *br) { return 0; }

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PersonTokensPropCommitsCommitProp
Toshiaki Makita960.00%150.00%
Vlad Yasevich640.00%150.00%
Total15100.00%2100.00%


static inline int nbp_vlan_add(struct net_bridge_port *port, u16 vid, u16 flags, bool *changed) { *changed = false; return -EOPNOTSUPP; }

Contributors

PersonTokensPropCommitsCommitProp
Vlad Yasevich2270.97%266.67%
Nikolay Aleksandrov929.03%133.33%
Total31100.00%3100.00%


static inline int nbp_vlan_delete(struct net_bridge_port *port, u16 vid) { return -EOPNOTSUPP; }

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PersonTokensPropCommitsCommitProp
Vlad Yasevich19100.00%1100.00%
Total19100.00%1100.00%


static inline void nbp_vlan_flush(struct net_bridge_port *port) { }

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PersonTokensPropCommitsCommitProp
Vlad Yasevich11100.00%1100.00%
Total11100.00%1100.00%


static inline struct net_bridge_vlan *br_vlan_find(struct net_bridge_vlan_group *vg, u16 vid) { return NULL; }

Contributors

PersonTokensPropCommitsCommitProp
Vlad Yasevich1575.00%266.67%
Nikolay Aleksandrov525.00%133.33%
Total20100.00%3100.00%


static inline int nbp_vlan_init(struct net_bridge_port *port) { return 0; }

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PersonTokensPropCommitsCommitProp
Vlad Yasevich15100.00%1100.00%
Total15100.00%1100.00%


static inline u16 br_vlan_get_tag(const struct sk_buff *skb, u16 *tag) { return 0; }

Contributors

PersonTokensPropCommitsCommitProp
Vlad Yasevich20100.00%2100.00%
Total20100.00%2100.00%


static inline u16 br_get_pvid(const struct net_bridge_vlan_group *vg) { return 0; }

Contributors

PersonTokensPropCommitsCommitProp
Vlad Yasevich1381.25%250.00%
Nikolay Aleksandrov318.75%250.00%
Total16100.00%4100.00%


static inline int __br_vlan_filter_toggle(struct net_bridge *br, unsigned long val) { return -EOPNOTSUPP; }

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PersonTokensPropCommitsCommitProp
Nikolay Aleksandrov20100.00%1100.00%
Total20100.00%1100.00%


static inline int nbp_get_num_vlan_infos(struct net_bridge_port *p, u32 filter_mask) { return 0; }

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PersonTokensPropCommitsCommitProp
Nikolay Aleksandrov18100.00%1100.00%
Total18100.00%1100.00%


static inline struct net_bridge_vlan_group *br_vlan_group( const struct net_bridge *br) { return NULL; }

Contributors

PersonTokensPropCommitsCommitProp
Nikolay Aleksandrov18100.00%1100.00%
Total18100.00%1100.00%


static inline struct net_bridge_vlan_group *nbp_vlan_group( const struct net_bridge_port *p) { return NULL; }

Contributors

PersonTokensPropCommitsCommitProp
Nikolay Aleksandrov18100.00%1100.00%
Total18100.00%1100.00%


static inline struct net_bridge_vlan_group *br_vlan_group_rcu( const struct net_bridge *br) { return NULL; }

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PersonTokensPropCommitsCommitProp
Nikolay Aleksandrov18100.00%1100.00%
Total18100.00%1100.00%


static inline struct net_bridge_vlan_group *nbp_vlan_group_rcu( const struct net_bridge_port *p) { return NULL; }

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PersonTokensPropCommitsCommitProp
Nikolay Aleksandrov18100.00%1100.00%
Total18100.00%1100.00%


static inline void br_vlan_get_stats(const struct net_bridge_vlan *v, struct br_vlan_stats *stats) { }

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Nikolay Aleksandrov17100.00%1100.00%
Total17100.00%1100.00%

#endif struct nf_br_ops { int (*br_dev_xmit_hook)(struct sk_buff *skb); }; extern const struct nf_br_ops __rcu *nf_br_ops; /* br_netfilter.c */ #if IS_ENABLED(CONFIG_BRIDGE_NETFILTER) int br_nf_core_init(void); void br_nf_core_fini(void); void br_netfilter_rtable_init(struct net_bridge *); #else
static inline int br_nf_core_init(void) { return 0; }

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Pablo Neira Ayuso12100.00%1100.00%
Total12100.00%1100.00%


static inline void br_nf_core_fini(void) {}

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Pablo Neira Ayuso8100.00%1100.00%
Total8100.00%1100.00%

#define br_netfilter_rtable_init(x) #endif /* br_stp.c */ void br_set_state(struct net_bridge_port *p, unsigned int state); struct net_bridge_port *br_get_port(struct net_bridge *br, u16 port_no); void br_init_port(struct net_bridge_port *p); void br_become_designated_port(struct net_bridge_port *p); void __br_set_forward_delay(struct net_bridge *br, unsigned long t); int br_set_forward_delay(struct net_bridge *br, unsigned long x); int br_set_hello_time(struct net_bridge *br, unsigned long x); int br_set_max_age(struct net_bridge *br, unsigned long x); int __set_ageing_time(struct net_device *dev, unsigned long t); int br_set_ageing_time(struct net_bridge *br, clock_t ageing_time); /* br_stp_if.c */ void br_stp_enable_bridge(struct net_bridge *br); void br_stp_disable_bridge(struct net_bridge *br); void br_stp_set_enabled(struct net_bridge *br, unsigned long val); void br_stp_enable_port(struct net_bridge_port *p); void br_stp_disable_port(struct net_bridge_port *p); bool br_stp_recalculate_bridge_id(struct net_bridge *br); void br_stp_change_bridge_id(struct net_bridge *br, const unsigned char *a); void br_stp_set_bridge_priority(struct net_bridge *br, u16 newprio); int br_stp_set_port_priority(struct net_bridge_port *p, unsigned long newprio); int br_stp_set_path_cost(struct net_bridge_port *p, unsigned long path_cost); ssize_t br_show_bridge_id(char *buf, const struct bridge_id *id); /* br_stp_bpdu.c */ struct stp_proto; void br_stp_rcv(const struct stp_proto *proto, struct sk_buff *skb, struct net_device *dev); /* br_stp_timer.c */ void br_stp_timer_init(struct net_bridge *br); void br_stp_port_timer_init(struct net_bridge_port *p); unsigned long br_timer_value(const struct timer_list *timer); /* br.c */ #if IS_ENABLED(CONFIG_ATM_LANE) extern int (*br_fdb_test_addr_hook)(struct net_device *dev, unsigned char *addr); #endif /* br_netlink.c */ extern struct rtnl_link_ops br_link_ops; int br_netlink_init(void); void br_netlink_fini(void); void br_ifinfo_notify(int event, const struct net_bridge *br, const struct net_bridge_port *port); int br_setlink(struct net_device *dev, struct nlmsghdr *nlmsg, u16 flags); int br_dellink(struct net_device *dev, struct nlmsghdr *nlmsg, u16 flags); int br_getlink(struct sk_buff *skb, u32 pid, u32 seq, struct net_device *dev, u32 filter_mask, int nlflags); #ifdef CONFIG_SYSFS /* br_sysfs_if.c */ extern const struct sysfs_ops brport_sysfs_ops; int br_sysfs_addif(struct net_bridge_port *p); int br_sysfs_renameif(struct net_bridge_port *p); /* br_sysfs_br.c */ int br_sysfs_addbr(struct net_device *dev); void br_sysfs_delbr(struct net_device *dev); #else
static inline int br_sysfs_addif(struct net_bridge_port *p) { return 0; }

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PersonTokensPropCommitsCommitProp
Lee Jones1173.33%150.00%
Stephen Hemminger426.67%150.00%
Total15100.00%2100.00%


static inline int br_sysfs_renameif(struct net_bridge_port *p) { return 0; }

Contributors

PersonTokensPropCommitsCommitProp
Lee Jones1173.33%150.00%
Simon Arlott426.67%150.00%
Total15100.00%2100.00%


static inline int br_sysfs_addbr(struct net_device *dev) { return 0; }

Contributors

PersonTokensPropCommitsCommitProp
Lee Jones1173.33%150.00%
Stephen Hemminger426.67%150.00%
Total15100.00%2100.00%


static inline void br_sysfs_delbr(struct net_device *dev) { return; }

Contributors

PersonTokensPropCommitsCommitProp
Lee Jones969.23%150.00%
Stephen Hemminger430.77%150.00%
Total13100.00%2100.00%

#endif /* CONFIG_SYSFS */ /* br_switchdev.c */ #ifdef CONFIG_NET_SWITCHDEV int nbp_switchdev_mark_set(struct net_bridge_port *p); void nbp_switchdev_frame_mark(const struct net_bridge_port *p, struct sk_buff *skb); bool nbp_switchdev_allowed_egress(const struct net_bridge_port *p, const struct sk_buff *skb); int br_switchdev_set_port_flag(struct net_bridge_port *p, unsigned long flags, unsigned long mask); void br_switchdev_fdb_notify(const struct net_bridge_fdb_entry *fdb, int type);
static inline void br_switchdev_frame_unmark(struct sk_buff *skb) { skb->offload_fwd_mark = 0; }

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PersonTokensPropCommitsCommitProp
Ido Schimmel18100.00%1100.00%
Total18100.00%1100.00%

#else
static inline int nbp_switchdev_mark_set(struct net_bridge_port *p) { return 0; }

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PersonTokensPropCommitsCommitProp
Ido Schimmel15100.00%1100.00%
Total15100.00%1100.00%


static inline void nbp_switchdev_frame_mark(const struct net_bridge_port *p, struct sk_buff *skb) { }

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PersonTokensPropCommitsCommitProp
Ido Schimmel17100.00%1100.00%
Total17100.00%1100.00%


static inline bool nbp_switchdev_allowed_egress(const struct net_bridge_port *p, const struct sk_buff *skb) { return true; }

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PersonTokensPropCommitsCommitProp
Ido Schimmel22100.00%1100.00%
Total22100.00%1100.00%


static inline int br_switchdev_set_port_flag(struct net_bridge_port *p, unsigned long flags, unsigned long mask) { return 0; }

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PersonTokensPropCommitsCommitProp
Arkadi Sharshevsky23100.00%1100.00%
Total23100.00%1100.00%


static inline void br_switchdev_fdb_notify(const struct net_bridge_fdb_entry *fdb, int type) { }

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PersonTokensPropCommitsCommitProp
Arkadi Sharshevsky15100.00%1100.00%
Total15100.00%1100.00%


static inline void br_switchdev_frame_unmark(struct sk_buff *skb) { }

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PersonTokensPropCommitsCommitProp
Ido Schimmel11100.00%1100.00%
Total11100.00%1100.00%

#endif /* CONFIG_NET_SWITCHDEV */ /* br_arp_nd_proxy.c */ void br_recalculate_neigh_suppress_enabled(struct net_bridge *br); void br_do_proxy_suppress_arp(struct sk_buff *skb, struct net_bridge *br, u16 vid, struct net_bridge_port *p); void br_do_suppress_nd(struct sk_buff *skb, struct net_bridge *br, u16 vid, struct net_bridge_port *p, struct nd_msg *msg); struct nd_msg *br_is_nd_neigh_msg(struct sk_buff *skb, struct nd_msg *m); #endif

Overall Contributors

PersonTokensPropCommitsCommitProp
Nikolay Aleksandrov84616.74%2511.85%
Stephen Hemminger70613.97%4822.75%
Vlad Yasevich67413.34%2210.43%
Herbert Xu65212.90%125.69%
Linus Torvalds (pre-git)4358.61%10.47%
Linus Lüssing2244.43%52.37%
Ido Schimmel1723.40%31.42%
Toshiaki Makita1533.03%83.79%
Américo Wang1312.59%83.79%
Jiri Pirko1272.51%73.32%
Arkadi Sharshevsky1252.47%41.90%
Roopa Prabhu1222.41%73.32%
John Fastabend631.25%20.95%
Pablo Neira Ayuso571.13%20.95%
daniel500.99%10.47%
Lee Jones420.83%10.47%
Bart De Schuymer380.75%20.95%
Sridhar Samudrala380.75%10.47%
Hideaki Yoshifuji / 吉藤英明300.59%20.95%
Eric Dumazet280.55%41.90%
Satish Ashok260.51%20.95%
Linus Torvalds240.47%20.95%
Simon Arlott240.47%10.47%
Simon Wunderlich240.47%10.47%
Vivien Didelot200.40%31.42%
Elad Raz200.40%20.95%
Eric W. Biedermann200.40%20.95%
Patrick McHardy190.38%20.95%
Michał Mirosław190.38%31.42%
Rami Rosen160.32%10.47%
Scott Feldman150.30%20.95%
Chas Williams150.30%10.47%
David S. Miller150.30%10.47%
Felix Fietkau130.26%10.47%
Bernhard Thaler120.24%20.95%
Florian Fainelli120.24%10.47%
Alexey Dobriyan100.20%10.47%
David Ahern50.10%10.47%
Jamal Hadi Salim50.10%10.47%
Elena Reshetova40.08%10.47%
Hong Zhi Guo30.06%20.95%
Nicolas Dichtel30.06%10.47%
Jouni Malinen30.06%10.47%
Al Viro30.06%10.47%
Joe Perches20.04%10.47%
Igor Maravić10.02%10.47%
Michael Braun10.02%10.47%
Emese Revfy10.02%10.47%
Thomas Graf10.02%10.47%
Andrew Lunn10.02%10.47%
Li RongQing10.02%10.47%
Greg Kroah-Hartman10.02%10.47%
Adrian Bunk10.02%10.47%
Akinobu Mita10.02%10.47%
Total5054100.00%211100.00%
Directory: net/bridge
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